If we connect the midpoints of the sides of a triangle, each segment is a) the length of the opposite side and

b) to the opposite side

A.

Step-by-step explanation:

A line segment that connects two midpoints of the sides of a triangle is called a midsegment. ... One is that the midsegment is parallel to a side of the triangle. The other is that the midsegment is always half the length of this side.

answer: get jesus in your life

step-by-step explanation:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!